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US 2012/0222412 A1Published application
Engine Exhaust Gas Particulate Filter having Helically Configured Cells
AssigneeInternational Truck Intellectual Property Company, LLC
InventorGerald W. Askew
Life of this patent
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Abstract
An engine exhaust gas particulate filter comprises a plurality of paired longitudinal flow cells having a first flow cell channel and a second flow cell channel. The first flow cell channel is disposed in fluid communication with the second flow cell channel through a common permeable filtration wall. Each of the plurality of paired longitudinal flow cells forms a non-linear flow path about a longitudinal axis of the engine exhaust gas particulate filter.
Claims19
An engine exhaust gas particulate filter comprising:
- a plurality of paired longitudinal flow cells having a first flow cell channel and a second flow cell channel, the first flow cell channel being disposed in fluid communication with the second flow cell channel via a common permeable filtration wall;
- wherein each of the plurality of paired longitudinal flow cells forms a non-linear shape about a longitudinal axis of the engine exhaust gas particulate filter.
An exhaust system comprising:
- an engine exhaust gas particulate filter having a plurality of paired longitudinal flow cells, each of the plurality of paired longitudinal flow cells having a first flow cell channel and a second flow cell channel, the first flow cell channel being disposed in fluid communication with the second flow cell channel via a common permeable filtration wall;
- wherein each of the plurality of paired longitudinal flow cells forms a non-linear shape about a longitudinal axis of the engine exhaust gas particulate filter.
A vehicle comprising:
- an exhaust system having an engine exhaust gas particulate filter having a plurality of paired longitudinal flow cells, each of the plurality of paired longitudinal flow cells having a first flow cell channel and a second flow cell channel, the first flow cell channel being disposed in fluid communication with the second flow cell channel via a common permeable filtration wall;
- the first flow cell channel having a first open end at a proximal end of the engine exhaust gas particulate filter, and a second closed end at a distal end of the engine exhaust gas particulate filter;
- the second flow cell channel having a first closed end at a proximal end of the engine exhaust gas particulate filter, and a second open end at a distal end of the engine exhaust gas particulate filter
- wherein each of the plurality of paired longitudinal flow cells forms a non-linear shape about a longitudinal axis of the engine exhaust gas particulate filter.
1 more element
Dependencies are inferred from the claim text.